Roll forming, also spelled rollforming, is a continuous bending operation in which a long strip of sheet metal (typically coiled steel) is passed through sets of rolls mounted on consecutive stands, each set performing only an incremental part of the bend, until the desired cross-section profile is obtained. Roll forming is ideal for producing constant-profile parts with long lengths and in large quantities.
Famous quotes containing the words roll and/or forming:
“The mode of clearing and planting is to fell the trees, and burn once what will burn, then cut them up into suitable lengths, roll into heaps, and burn again; then, with a hoe, plant potatoes where you can come at the ground between the stumps and charred logs; for a first crop the ashes suffice for manure, and no hoeing being necessary the first year. In the fall, cut, roll, and burn again, and so on, till the land is cleared; and soon it is ready for grain, and to be laid down.”
—Henry David Thoreau (1817–1862)
“Young people of high school age can actually feel themselves changing. Progress is almost tangible. It’s exciting. It stimulates more progress. Nevertheless, growth is not constant and smooth. Erik Erikson quotes an aphorism to describe the formless forming of it. “I ain’t what I ought to be. I ain’t what I’m going to be, but I’m not what I was.””
—Stella Chess (20th century)